Factors To Consider While Designing A Pressure Vessel

Factors To Consider While Designing A Pressure Vessel

A vessel which runs or operates above atmospheric pressure can be called as Pressure vessels. Pressure vessels are capable of holding the volume of liquids, vapours, and gases above atmospheric pressure. There are several equipment’s working under this philosophy such as Heat Exchangers, Filters, Heaters, Coolers and Reaction vessels. The safety of this pressurized vessels is depending heavily on the factors considered while designing the vessel. ASME Sec VIII requests for the following minimum considerations while designing Pressure vessel.

  • Design Code
  • Design/Operating Pressure & Temperature
  • Maximum Allowable Working Pressure (MAWP)
  • Minimum Design Metal Temperature (MDMT)
  • Hydrotest Pressure
  • Process condition
  • Corrosion Allowance
  • Nominal thickness
  • Reinforcement Pad thickness
  • Head shape -Hemispherical head, ellipsoidal head, flanged head
  • wind and seismic load data’s
  • Load conditions
  • Orientation of Vessel
  • Fabrication material
  • Volume of Vessel
  • Factor of safety
  • Surface finish
  • Welding 
  • External factors

Pressure Vessel Certifications:

  • ASME VIII – For design and fabrication.
  • API 510 – For maintenance, repair, and alteration.
  • API 572 – For inspection.


  • Oil and gas industry
  • Chemical industry
  • Nuclear power plant 
  • Food processing industry
  • Power generation industry

Sunstream engineering team is experienced in all aspects of pressure vessels design. We can adopt to any specific client needs in terms of calculation, design and drafting of pressure vessels. We develop customized pressure vessel designs through our 3D modeling services to enhance the design’s accuracy and efficiency. Reach out to us to discuss about your upcoming pressure vessel design needs.